Projectile



P.. VAN DEUREN.

PROJECTILE.

`APPLICATION FILED FEB- 4, |919A Patented Nov. 30, 1920.

UNITED STAT-Es PALFENT OFFICE.

PIERRE VAN DEUREN, or BRAsscHAE'r, BELGIUM, AssIGNoR 'ro socIETE ANONYME POUR LExPLoITATIoN DEs PRocEDEs wEs'rINGnoUsE LEBLANC, 0E PARIS,

FRANCE.

PRoJEcTiLE.

To all 'whomt may camera:

Be it known that I, PIERRE VAN DEUREN, a subject of the Kingdom of Belgium, Centre de LArtillerie -De Tranche, Brasschaet, Province DAnvers-Belgique, lhave made a new and useful Invention in Projectiles, of which the following is a specification.

In United States Letters Patent, 1,307,384 issued to Pierre Van Deuren, Albert Delas and Maurice Leblanc, on June 24, 1919, a certain type of cannon and a certain type ofA projectile for use therewith are shown and this invention relates to an improved proj ectile for use With cannon of said type.

An object of this invention is to provide anV improved construction of projectile for use with the type of cannon shown in said patent.

In the drawings, Figure 1 is a view partially in elevation and partially in section of a projectile embodying this invention and Fig. 2 isa cross sectional view taken on line 2-2 ofV Fig. 1 looking in the direction of the arrows. A j

The projectile consists of a body or head `portion 3 adapted to contain the explosive The cylindrical walls of the body charge. are united to theV base 4 of the body p0rtion by means of an acetylene weld 5. Base 4 is internally threaded at 6. and a tubular tail 7 having itsn forward end 8 closed as shown is externally threaded 'and screwed into the base portion 4. After being placed in position the base and the head of the tail are drilled/and tapped to receive a threaded rod 7 for/,the purpose of locking the two parts securely together and the rod is then Abent over-into UV form as shown in Fig. 1 to form la stopv for limiting the distance to which the tail 7 is inserted within the bore of the cannon with which the projectile is to be used. Base portion Y4 of the body is provided Awith an annular groove 8 into whichone end of va sheet metal tube 9 is crimped. Sheet metal tube 9 besides being secured tobase 4 Yby the crimping of the tube oxyacetylene welded at 10 to the baseportion.^

To the outer'end of tube 9 four radially disposed vanes. 11 are secured preferably by oxyacetylene welding.

grooves 12 pressed therein whichV form stiffening ribs on one side of the vanes and grooves on the other. The tube 9 nearits Y ing to its stability.

Vanes 11 are stiilened and strengthened by having` Specication ofLetters Patent. Patentd Nov, 30, 1920. Application iled February 4, 1919. Serial No. 274,901.

mner end is provided with four oval shaped openings 13. The hollow tail 7 contains a propelllng charge of -powder 14 which is preferably contained within a suitable fabric bag 15. A small bag 16 of 'black powder 1s lnclosed Within the inner end of bag 15 and 1s surrounded by the inner end of the propelling charge'. Anv electriccap 17 buried Within ,the black powder charge is connected by means of wires 18 which pass through a small opening -19 near the inner end of tail 7 andv are connected with a suitable electric device for igniting the black powder charge. The propelling charge is secured wlthin the tail by means of a suitable cardboard Wad 20. l

I n this construction shell 9 is extreme] rigid and forms aprotection for the tall durmg lts transportation and handling and gives it stability in the air.A Shell 9 which extends around the barrel of the cannon allows the varies 11 to be placed at the extreme lower end of the projectile thus add- The oval openings 13 are provided in order to avoid, when the cannon is fired, an exaggerated pressure in shell 9 which' might affect the stability of the projectile and the accuracy of fire.

By havin@ the propelling charge sealed in the tail vtlie projectiles are ready for immediate use. The bent over portion of pin or rod 7 by limiting the depth to which the tail 15 may be inserted inthe bore of the cannon' protects the wires 19 andV the cardboard wad 20 whichY will be properly varnished or waxed, for the purpose of,

keeping the propelling charge free from moisture. This Wad is blown away or burned when the cannon is lired. By having the proper propelling charge sealed Within the projectile no handling of charges at the last lminute is necessary and this aids in the rapidity of shooting. Furthermore the ignition of the propelling-charge in the tail .closed by the wad always gives good ignition even when the explosion chamber formed in the bore of the cannon behind the tail is of maximum'size as set forth in said prior application.

Having thus described my invention, what I claim is- Y 1. A projectile comprising a body having a chamber for an explosive charge formed therein, a hollow tail secured to the body, a

propelling charge said tail, a metal cylinder surrounding the tail and spaced therefrom to receive a gun barrel into which said tail is' adapted to be inserted, and radially extending vanes secured to Said cylinder adjacent its rear end.

2. A projectile of the class described, comporising, a body, a hollow tail secured to said dy, a propelling charge sealed within said' tail, a sheet'metal cylinder secured to said body and surrounding said tail, openings in said cylinder adjacent its inner end, and

vanes secured to said cylinder adjacent its outer end.

3. A prejeeeiie effehe clase deseribed, eem-1 spaced therefrom, and vanes secured to said' projectile.

5. A projectile comprising a body having a chamber for an explosive charge formed therein, a tail secured to the rear of said body and open at its rear end, a rearwardly .extending member carried by the body sur,-

rounding said' tail and spaced therefrom, vanes carried by said member and a pro pelling charge .sealed within said tail.

6. A' projectile comprising a body, a rearwardly extending hollow tail secured to said body, and open at its rear end, a cylindrical member carried by the body and extending rearwardly thereof in spaced relation to Vsaid tail, a propelling charge sealed within Y the hollow tail, and substantially radially extending vanes secured to the projectile.

7 .Av projectile comprising a body, a rearwardly extending tubular tail carried by the body and axiallyV alined therewith, a rearwardly extending cylindrical member carried by theV body, concentric with but spaced from said tail, substantially radially extending wings secured to the projectile,

and a propelling charge sealed in said tail.,

8. A projectile comprising a body having a chamber for an explosive charge forme therein, a rearwardly extending hollow tail secured to the body and adaptedvto be inserted into the bore of a gun, a sto associated with the tail for engaging t e gun barrel and determining the distance the tail may be inserted into the barrel, a reary wardly extending tubular member open at its rear end and adapted t0 receive the gun barrel ieee whieif Seid cd1 is inserted, and

f having an openingformed therein adjacent said stop, and" a propelling charge sealed within said tail.

9. A rojectile comprising a body ha a cham r for an explosive charge Vforme therein, al rearwardly extending hollow tail secured to the body and adapted to beinserted into the bore of a gun, a stop associated with the tail for engaging the gun barrel and determining the distance` the tail may be inserted into the barrel, a rearwardly extending tubular member open at its rear end and adapted. to receive the gun barrel.

into which said tail is inserted, and having an opening formed therein adjacent sai stop, vanes mounted on said member, and a propelling charge sealed within said tail.

10, A projectlle comprising a body, a centrally disposed, rearwardl extending tubular tail carried. by the body and open at its rear end, a rearwardly extending member carried by said body concentric with and spaced from said tall open at its rear end and provided with openingsat its forward end adjacent said body, a 'propelling charge sealed within said tail, and means for fir' said charge located at the body end of tail.

11. A projectile comprising a body, a rearwardly extendin tubular tail carried by the body and adapte .to receive a propelling charge and. to be inserted in a un barre and a rearwardly extending mem r carried by the body,l surrounding said tail and spaced therefrom to receive the gun barrel into which the taillis inserted, said member being open atits rear end and having an opemng at its forward .end adjacent the body, and outwardly extending vanes secured to said projectile.

12. A projectile comprising a body, a rearwardly extendin hollow tail secured to the body and adap to receive aepropellin charge and to be inserted into a gun barre a stop carried by the projectile for engaging the gun barrel and determining the extent to which the tail may be inserted into the barrel, a rearwardly extending member carried by the body, and surrounding the tail and open at its rear end and provided with an openin at its forward end, and substantially radially' extending vanes secured to said member, said member being spaced from said tail to receivethe gun barrel into which said tail may be inserted.

13. A pro'ectile comprising a body havin a chamber or an explosive charge forme therein, a rearwardly extending hollow tail secured thereto adapted Vto receive a propelling charge and to be inserted intoa barrel, a rearwardly extending cylindrical member secured to said body and surrounding said tail andspaced therefrom to receive the gun barrel into which saidtail may be inserted,said member having an opening at the body end thereof, and firing means for the propelling charge located et the body end of said tail and operated through the opening in said member.

14. A projectile comprisn a body having a chamber formed therein or an explosive charge, a rearwardly extending hollow tail secured thereto adapted to receive a. propelling charge and to bev inserted into the barrel of a gun, a rearwardly extending member carried by the body eccentric with said tail but spaced therefrom to receive a gun barrel into which said tail may be inserted, firing means for the propelling charge 1ocated in said tail and operated through a. gasdischarge opening formed at the forward end of said rearwardly extending member.

In testimony whereof, I have hereunto subscribed my name this 4th day of February, 1919.

PIERRE VAN DEUREN. 

